2212210112220 has 96 divisors (see below), whose sum is σ = 7028866252800. Its totient is φ = 577371143232.

The previous prime is 2212210112087. The next prime is 2212210112221. The reversal of 2212210112220 is 222110122122.

It is a happy number.

2212210112220 is a `hidden beast` number, since 221 + 2 + 210 + 1 + 12 + 220 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 2212210112193 and 2212210112202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212210112221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43556380 + ... + 43607139.

It is an arithmetic number, because the mean of its divisors is an integer number (73217356800).

Almost surely, 2^{2212210112220} is an apocalyptic number.

2212210112220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2212210112220 is an abundant number, since it is smaller than the sum of its proper divisors (4816656140580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2212210112220 is a wasteful number, since it uses less digits than its factorization.

2212210112220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87163584 (or 87163576 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 2212210112220 its reverse (222110122122), we get a palindrome (2434320234342).

The spelling of 2212210112220 in words is "two trillion, two hundred twelve billion, two hundred ten million, one hundred twelve thousand, two hundred twenty".